The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 14, 2008
Filed:
Jul. 28, 2005
Tooru Hirai, Yokohama, JP;
Takashi Mori, Yokohama, JP;
Yasuyuki Fukashiro, Yokohama, JP;
Tetsuya Uda, Yokohama, JP;
Hiroyuki Nakano, Yokohama, JP;
Tooru Hirai, Yokohama, JP;
Takashi Mori, Yokohama, JP;
Yasuyuki Fukashiro, Yokohama, JP;
Tetsuya Uda, Yokohama, JP;
Hiroyuki Nakano, Yokohama, JP;
Hitachi Communication Technologies, Ltd., Tokyo, JP;
Abstract
An optical switch having plural input terminals and plural output terminal, plural dispersion compensators, and a controller for monitoring the change-over state of the optical switch and the dispersion compensation quantities of the plural dispersion compensators and controlling the setting of the optical switch are provided. In response to a request for setting dispersion compensation, the optical switch is set according to the dispersion compensation quantity of each dispersion compensator and the change-over state of the optical switch.